Keulen, E. T. P.

Keulen, E. T. P. is an active researcher at the German Cancer Research Center (DKFZ) specializing in colorectal cancer research with a focus on the interplay between nutritional factors, metabolomics, and patient outcomes. Their work examines how biological rhythms, vitamin status, and metabolic profiles influence cancer progression, survivorship, and quality of life.

Research interests include:

• Colorectal cancer survivorship and long-term quality of life
• Nutritional oncology, particularly B-vitamins and folate metabolism
• Metabolomics and biomarker discovery for cancer progression
• Sleep-wake cycle analysis and fatigue management in cancer survivors
• International consortium-based cancer research methodologies

Analysis of recent publications reveals a consistent focus on how nutritional biomarkers and metabolic pathways impact colorectal cancer outcomes. The research employs longitudinal study designs, cross-sectional analyses, and international collaborations to investigate relationships between vitamin status, metabolic profiles, and cancer progression. This work contributes significantly to understanding modifiable factors that influence cancer survivorship and quality of life.

Notable scientific contributions include:

• Investigations into diurnal rest-activity patterns and their relationship with fatigue in cancer survivors
• Studies examining vitamin B6 status as a predictor of survival in colorectal cancer patients
• Research on B-vitamin biomarkers and their relationship to quality of life metrics
• Analysis of folate concentrations in relation to cancer recurrence and survival
• Identification of plasma metabolites associated with colorectal cancer staging

Collaborative research appears central to this work, with participation in multiple international consortia examining various dimensions of colorectal cancer biology and patient outcomes. The research methodology typically involves large cohort studies with detailed biomarker assessments and longitudinal follow-up.